Inking device for printing-presses.



R. 0. VAND-ERCOOK. INKING DEVICE FOR PRINTING PRESSES. APPLICATION FILED AUG. 1.1913. 1 1 20,868. Patented Dec. 15, 1914.

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R. 0. VANDEHCOOK. INKING DEVICE FOR PRINTING PRESSES.

APPLICATION FILED AUG. 1. 1913.

1, 1 20,868, Patented Dec. 15, 1914.

4 SHEETS-SHEET 2.

R gerwzwoh THE NORRIS PETERS 50.. PHOTO-LITHQ. WASHINGTON D. c.

R. 0. VANDBROOOK. INKING DEVICE FOR PRINTING PRESSES.

APPLIGATION FILED AUG. 1. 1913.

Patnted Dec. 15, 1914 *HE NORRIS PETERS CO. PHOTO-LITHO., WASHINGTON. D. C

R. O. VANDERGOOK.

INKING DEVICE FOR PRINTING PRESSES.

APPLICATION FILED AUG. 1, 1913.

1, 120,868. Patented Dec. 15, 1914.

4 SHEETS-SHEET 4.

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T UNITED STATES PATENT ()FFIOE.

ROBERT O. VANDERCOQK, EVANS'ION, ILLINOIS.

INKING DEVICE FOR PRINTING PRESSES.

This invention relates to improvements in inking devices for printing'presses and consists of the matters hereinafter described and more particularly pointed out in the appended claims.

The invention as illustrated herein is shown applied to a handoperated, proof printing press of a type heretofore invented by me and described in Letters Patent No.

1,042,848 granted me on the 29th day of October, 1912, the same consisting of a horizontal bed forthe support of the type, and of a rolling or rocking impression member which is held down to its workby means of the engagement of rollers carried by the impression member with the bottom faces of horizontal tracks made rigid with and extending at each side of the bed. While the improved features of the inking mechanism make its use in connection with such a press of particular advantage, it vis not limited to such a press but is capable of application to other presses including power presses as well as to hand-operated presses.

In the drawings :-Figure 1 is a view representing a side elevation of a press of the type described provided with my improved inking mechanism. Fig. 2 is a view representing a transverse vertical section through the same in a plane indicated by line 22 of Fig. 3. Fig. 3 is a view repre-' senting on an enlarged scale, a top plan view of the press. Fig. 4 is a view representing a longitudinal, vertical central section through the press in a plane indicated by the line H of Fig. 3. Fig. 5 is a view representing a longitudinal, vertical central section through the inking mechanism on a still larger scale. Fig. '6 is a view representing said inking mechanism in side elevation. Fig. 7 is'a View representing a seceach side of the bed-plate 10.

Specification of Letters Patent. Patented De 15, 1914. Application 'filed August 1, 1913. Serial at. 782,456.

tion through Fig. 5 in a plane indicated by the line 77 thereof. Fig-8 is a detail view to be more particularly later. 3 v Referring now to thatembodiment of my nvention illustrated in the drawings, 10 indicates the bed-plate of a printing press of the type-described, and 11 a suitable table upon which it is supported.

12 indicates the impression member which comprises a cylindric platen 13 having annular end flanges 1iadapted to roll on suitable horizontal tracks located on each side of the bed-plate and extending longitudi-v nally thereof.

15, 15 indicate gears fixed to said end flanges 1a and adapted for engagement with longitudinally extending rack-bars located adjacent to the aforesaid tracks. The flanges 14 are made rigid with hubs 16, 16,

being connected thereto as shown by means I of spokes 16 and in said hubs arev fixed stub-shafts 1 7, 17 on which are mounted rotative, depending arms 18, 18, each of which carries at its lower end longitudinally spaced rollers 19, 19. Said" rollers have rolling engagementwith the bottom surfaces of longitudinally extending tracks 20 20 made rigid with and arranged at The construction thus far is substantially as described in the patent hereinbefore mentioned and forms no part of the present invention. At each end of the bed-plate there is provided an inkingplate 20 which is made rigid with the bed-plate with its top surface referred to in the horizontal plane in which the faces ,of the type are adapted to lie. v

21, 21 indicate two laterally spaced, parallel inking rolls arranged transversely of the bed-plate and supported ina carriage 22 adapted to travel longitudinally. of the bed-plate. The carriage 22 consists of end plates 23, 28, located at the sides of the bed-plate and connected. by rods 23*, 23, extending transversely of the bed-plate and of bearingblocks 24, 24, each supported on one of said end plates. The inking rolls 21,

21, have shafts or studs 21 extending beyond their ends and bearing in suitable grooves 26 formed in said bearing blocks.

The shafts are confined insaid grooves by I means of removable bars 26 each secured to the associated end plate by bolts or screws 27, 27.

The bearing blocks 24: are preferably 5 made vertically adjustable on the end plates 23 in order to adjust the space between the contact surfaces of the inking rolls and the surface of the inking plates andof the type faces to compensate for variations in the diameters of the inking rolls due to changes in atmospheric conditions and wear of the rolls. To this end the bearing blocks have horizontal end extensions 28 28*, through which bearing screws 2'8, 28 are threaded and the end plates 23 have horizontal shoulders 23 23 on which said bearing screws rest. Lock-nuts 29, are placed on each screw, respectively, below and above the end extensions 28 of the bearing block to go look the same in position when adjusted.

In order to anchor the bearing blocks to the end plates of the carriage, the screws 27, which serve to attach the bars 26 to said blocks are, as shown herein, made long 25 enough to extend into said end plates with which they have threaded engagement. l Vhen adjusting the bearing blocks it is necessary to first loosen said screws.

The carriage 22 is provided With devices so for engagement with suitable tracks or ways on the bed-plate so that said carriage may becaused to travel over the bed-plate and so that it may be properly held down to its Work. Each end'plate has longitudinally spaced depending arms 32, 32 carrying horizontal stub-shafts 33, 33, at their lower ends on which journaled rollers 34, 3%. On one side of the bed-plate, that is to say, the left-hand side as viewed in Fig. 2, there is secured a longitudinally extending bar 35 which is let into a suitable recess formed in the bed-plate. Said bar has formed on its upper side along-its outer edge, a longitudinally extending row of rack-teeth 36 which are adapted for engagement with one of the gears 15 of the impression member. EX- tending in a plane adjacent to the row of rack-teeth 36 is a bar 37 fixed in a recess in the upper surface of the bar 35. This bar 37 constitutes a bearing rail for one of the annular flanges 14 of the impression member.

38 indicates'a second row of rack-teeth formed on the upper side of the bar 35 and 5 extending alongside of the rail 37 On the shafts 21 of the inking rolls are keyed gears 39, 39, which engage the rack-teeth 38. As the carriage is moved along the bed-plate the engagement of the gears 39 with the rack-teeth 38 imparts a rotary movement to the inking rolls. The teeth of the gears 39 and the rack-teeth 38 are out to allow for the required vertical adjustment of the ink- I ing rolls.

On the inner vertical face of the bar 35 for rolling contact with one is formed a laterally opening channel 39* having horizontal top-side and bottom-side walls in which the rollers 34 of the adjacent to hold the carriage down to its work.

On the opposite side of thebed-plate there are provided two adjacent longitudinally extending bars 40, ll let into a suitable recess in said plate, the first of which, l0, has provided on its upper side, gear teeth 4:0

engagement with the gear 15 at the adjacent end of the impression member and the upper face of the other, d1, providing a bearing rail for the adjacent annular flange d0 on the impression member. In the inner vertical face of the latter bar there is provided a channel 41 which is placed over againstthe above mentioned channel 39 and in which are engaged the rollers 3% carried by the adjacent end plate of the inking roll carriage. 5

On the bed-plate between the inking plates are provided longitudinally extending ribs d2, 42, which act to define the space in which the type or type forms may be placed without interfering with the movement of the carriage. It is apparent that by means of this construction the inking carriage may be easily moved from the inking plate at one end of the bed-plate over the type on the intermediate part of the bedplate to the inking plate at the opposite end of the bedplate, the rollers of the carriage traveling in the channels 39*, 41 and the gears 39 on the inking rolls by their engagement with the rack 38 causing the inking rolls to rotate. One of the transverse rods 23* of the carriage maybe grasped to produce this movement and it is apparent that ink spread or placed upon one of the inking plates 20 may be smoothly and evenly applied to the surfaces of the inking rolls, after they have been properly adjusted with reference to' said inking plates, as above described, by moving the carriage backward and forward over the same in a familiar manner.

In order to provide for distribution of the ink in a longitudinal direction over the surfaces of the inking roll, I adopt the following: 4:3, 43indicate spaced, vertical pins rising from each bearing block of the carriage. On said pins is mounted a vertically movable frame 44- comprising apertured end plates l5, 4:5, through which the pins extend and transversely extending, spaced connecting rods, 47, 47. 48, 4:8 indicate parallel spaced, spreading rolls extending parallel to the inking rolls 21 and each adapted for of said inking rolls. The rolls 48 are journaled in the end plates 45 of the frame 44'. A The end plates 45 are provided in a plane midway between the rotative axes of the "lhus. when the frame 44 is vertically adjusted so that the tubular roll 51 is in rolling contact with the two inking rolls 21, 21, the rotative movement imparted to said tubular roll by the inkingrolls in the movement of the carriage over the bed-plate, will cause the tubular roll to travel endwise from one side of the carriage to the other, thus distributing the ink longitudinally over the surfaces of the inking rolls.

At one end of the screw 50, (the left hand end as shown in'Fig. 3,) is provided a cam 52 (see Fig. 8 which is a detail sectional view showing the tubular roll when at that end of the screw,) which has a cam surface 52' for engagement with the pin 51 inclined in a direction opposite to the inclination of the screw-threads. When the tubular roll has traveled to that end of the screw, the pin 51 will strike the cam 52 which will act as a stop to prevent further longitudinal movement of the roll in that direction. When the movement of the carriage is reversed, and the inking rolls and the tubular roll with them are caused to rotate in a reverse d1rect1on,the cam surface 52 guides the pin 51 back into engagement with the thread of the screw which now produces an endwise movement of the tubular roll back in the direction from. which it came. It will be apparent that when the carriage is moved backward and forward over one of the inking plates in applying the ink to the inking rolls that the tubular roll will travel first toward one end of the inking rolls and then back toward the other, thus acting to spread and distribute the ink longitudinally over the surfaces of said rolls. At the same time the small rolls 48 assist in distributing the ink transversely of said rolls.

The frame 44 is movable vertically so that the rolls 51, 48 and 48 carried thereby may be brought into engagement or contact with the inking rolls, as illustrated in Fig. 5, or may be raised into a position where they do not engage said inking rolls, as illustrated in Fig. 6 when the press is idle,

to prevent wear. To produce this movement and to support the frame 44 in its upper position, levers 53 are fulcrumed to the bearing blocks 24 of the inking rolls. 54 indicate the pins on which said levers are produced. a

, fulcrumed and 55 a transversely extending bar connecting the ends of said levers and constituting a handle for operatingthem.

The levers arebell-cranks and havearms 56 carrying laterally extending pins 57 which plates, 45 of the frame 44. Said endplates have centrally located, depending tongues '58 in which areformed cam grooves 59 for its lower position; By depressing the operatingends of the levers a movement of the are adapted for engagement with-the end v '85 levers will permit the frame to descend to frame to bring it to its upper position is The platen side of the impression member. The impression member is placed on the bed in such manner and the bed is of such length 13 of the impression member 12, forms as shown only a part of a cylinder, there being an open space or gap 60 on one that when the impression member is rolled to one end of the bed-plate this gap comes above the carriage of the inking mecha nism. Thus the impression member may be rolled to either end'of the bed-plate without interfering with the inking member, when the carriage is in its normal position above the inking plate. It may sometimes happen, however, that by carelessness or otherwise, the carriage is left in an intermediate position on the bed-plate. In this position if allowed to stand there, it would be struck by the platen. To prevent any possibility of this occurring 1 secure to one end plate of the carriage a cam-rod 61.

62 indicates an annular groove located in i 61 will be engaged in the groove 62 in said platen and" the carriage will becaused to travel toward the end of the bed-plate.

For moving theimpression member over the bed-plate'one of the arms 18 is provided with an upright radial arm 65 which may be grasped in producing the desired movement. It is apparent that force supplied in a horizontal directionagainst said arm 65 will cause a rocking or rolling movement of the impression member over the bedplate. To stop the impression member when it reaches the end of the bed-plate, bumpers 66 are provided at each end and at each side of the bed-plate and the arms 18, 18 carrying the rollers 19 are provided with inwardly extending lugs or shoulders 67 (see Fig. 2) in line with said bumpers.

While in describing one embodiment of 1 my invention 1 have referred to certain details of mechanical construction and arrangement, not only with respect to the invention itself but also with respect to the press to which it is applied, it is to be understood that the invention is in no Way limited thereby either in construction or in its application, except as pointed out in the appended claims,

Iclaim as my invention z 1. An inking device for printing presses comprising in combination With atype supporting bed one or more inking rollers, an inking plate, a carriagein Which said inking roller or rollers are rotatively mounted, means for adjusting said inking roller or rollers in said carriage with reference to the plane of their Work, tracks extending at each side of said inking plate and type bed providing laterally opening channels hav ing top and bottom sides, depending arms on said carriage, an antifriction device carried by said carriage and adapted for engagement With the top and bottom sides of said channels, gears on said inking rollers, and a rack extending adjacent to one of said tracks engaged by said gears.

2. An inking device for printing presses comprising in combination With a carriage, inking rollers rotatively mounted in said ing roller when it has reached one side of said carriage and to direct it into proper engagement with said thread when the move-' -ment of said carriage is reversed.

In combination With a printing press, comprising a bed-plate and a rolling or rocking impression member provided With a cylindric platen, an inking plate at the end of said bed-plate, the platen of said impression member being provided With a gap adapted to lie above said inking plate When the impression member is rocked or rolled to the inking plate end of said bed-plate, a carriage adapted to travel over said inking plate and over said bed-plate, inking rollers carried thereby and a cam device on said carriage and adapted to be struck by the platen of said impression member and to drive said carriage toward said inking plate when said carriage is left in the path of said impression member.

in testimony, that I claim the foregoing as my invention I atliX my signature in the presence of two Witnesses, this 29th day of July .Ar.

ROBERT O. VANDERCOOK.

Witnesses: V

Gnonen B. VVILKINS, M. MCCARTHY.

Copies of this patent maybe obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

